Question

Identify the end product \(Z\) in the given sequence of reactions \[ C_3H_6 \xrightarrow[\left(C_6H_5COO\right)_2]{HBr} X \] \[ X \xrightarrow[\text{Anhy. }AlCl_3]{C_6H_6} Y \] \[ Y \xrightarrow[(iii)\ NaOH/CaO,\Delta]{(i)\ KMnO_4/OH^- \;\; (ii)\ H_3O^+} Z \]

• A. Toluene
• B. Cumene
• C. Benzene
• D. Xylene

Hint:

Key reactions used: \[ \text{Propene + HBr (Peroxide)} \rightarrow \text{Anti-Markovnikov product} \] \[ \text{Alkyl benzene} \xrightarrow{KMnO_4} \text{Benzoic acid} \] Soda-lime decarboxylation \[ ArCOONa \rightarrow ArH \] Thus, \[ \text{Cumene} \rightarrow \text{Benzoic acid} \rightarrow \text{Benzene}. \]

Answer 1

The Correct Option is C